17 (seventeen) is the natural number In mathematics, there are two conventions for the set of natural numbers: it is either the set of positive integers {1, 2, 3, ...} according to the traditional definition; or the set of non-negative integers {0, 1, 2, ...} according to a definition first appearing in the nineteenth century following 16 and preceding 18. It is prime In mathematics, a prime number is a natural number that has exactly two distinct natural number divisors: 1 and itself. The smallest twenty-five prime numbers (all the prime numbers under 100) are:.

In speech, the numbers 17 and 70 are often confused as they sound similar. When carefully enunciated, they differ in which syllable is stressed In linguistics, stress is the relative emphasis that may be given to certain syllables in a word, or to certain words in a phrase or sentence. The term is also used for similar patterns of phonetic prominence inside syllables. The word accent is sometimes also used with this sense: 17 /sɛvɨnˈtiːn/ vs 70 /ˈsɛvɨnti/. However, in dates such as 1789 Year 1789 was a common year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Monday of the 11-day slower Julian calendar) or when contrasting numbers in the teens, such as 16, 17, 18, the stress shifts to the first syllable: 17 /ˈsɛvɨntiːn/.

The number 17 has wide significance in pure mathematics Mathematics is the study of quantity, structure, space, and change. Mathematicians seek out patterns, formulate new conjectures, and establish truth by rigorous deduction from appropriately chosen axioms and definitions, as well as in applied sciences Fields of engineering are closely related to applied sciences. Applied science is important for technology development. Its use in industrial settings is usually referred to as research and development, law Law is a system of rules, usually enforced through a set of institutions. Laws can shape or reflect politics, economics and society in numerous ways and serves as a primary social mediator of relations between people. Contract law regulates everything from buying a bus ticket to trading on derivatives markets. Property law defines rights and, music Music is an art form whose medium is sound. Common elements of music are pitch , rhythm (and its associated concepts tempo, meter, and articulation), dynamics, and the sonic qualities of timbre and texture. The word derives from Greek μουσική (mousike), "(art) of the Muses.", religion Religion is the belief in and worship of a god or gods, or in general a set of beliefs explaining the existence of and giving meaning to the universe, usually involving devotional and ritual observances, and often containing a moral code governing the conduct of human affairs, sports A sport is commonly defined as an organized, competitive, and skillful physical activity requiring commitment and fair play.[note] It is governed by a set of rules or customs. In a sport the key factors are the physical capabilities and skills of the competitor when determining the outcome . The physical activity involves the movement of people,, and other cultural phenomena Popular culture is the totality of ideas, perspectives, attitudes, memes, images and other phenomena that are deemed preferred per an informal consensus within the mainstream of a given culture, specifically Western culture of the early to mid 20th century and the emerging global mainstream of the late 20th and early 21st century. Heavily.

In mathematics

Seventeen is the 7th prime number In mathematics, a prime number is a natural number that has exactly two distinct natural number divisors: 1 and itself. The smallest twenty-five prime numbers (all the prime numbers under 100) are:. The next prime is nineteen 19 is the natural number following 18 and preceding 20. It is a prime number, with which it forms a twin prime A twin prime is a prime number that differs from another prime number by two. Except for the pair , this is the smallest possible difference between two primes. Some examples of twin prime pairs are (3, 5), (5, 7), (11, 13), (17, 19), (29, 31), (41, 43), and (skipping quite a few), (821, 823). Sometimes the term twin prime is used for a pair of. 17 is the sum of the first four primes. 17 is the sixth Mersenne prime exponent, yielding 131071. 17 is an Eisenstein prime with no imaginary part and real part of the form 3n − 1.

17 is the third Fermat prime, as it is of the form 2³ + 1, and it is also a Proth prime. Since 17 is a Fermat prime, heptadecagons The regular heptadecagon is a constructible polygon, as was shown by Carl Friedrich Gauss in 1796 can be drawn with compass A compass is a navigational instrument for determining direction relative to the Earth's magnetic poles. It consists of a magnetized pointer free to align itself with Earth's magnetic field. The compass greatly improved the safety and efficiency of travel, especially ocean travel. A compass can be used to calculate heading, used with a sextant to and ruler A ruler, sometimes called a rule or line gauge, is an instrument used in geometry, technical drawing, printing and engineering/building to measure distances and/or to rule straight lines. Strictly speaking, the ruler is essentially a straightedge used to rule lines[citation needed] and the calibrated instrument used for determining measurement is. This was proven by Carl Friedrich Gauss Johann Carl Friedrich Gauss (pronounced /ˈɡaʊs/; German: Gauß listen , Latin: Carolus Fridericus Gauss) (30 April 1777 – 23 February 1855) was a German mathematician and scientist who contributed significantly to many fields, including number theory, statistics, analysis, differential geometry, geodesy, geophysics, electrostatics, astronomy.^[1] Another consequence of 17 being a Fermat prime is that it is not a Higgs prime for squares or cubes; in fact, it is the smallest prime not to be a Higgs prime for squares, and the smallest not to be a Higgs prime for cubes.

17 is the only positive Genocchi number that is prime, the only negative one being −3. It is also the third Stern prime.

As 17 is the least prime factor of the first twelve terms of the Euclid–Mullin sequence, it is the thirteenth term.

Seventeen is the aliquot sum of two numbers, the odd discrete semiprimes 39 and 55 Year 55 was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar is the base of the 17-aliquot tree.

There are exactly seventeen two-dimensional space (plane symmetry) groups In mathematics, a group is an algebraic structure consisting of a set together with an operation that combines any two of its elements to form a third element. To qualify as a group, the set and the operation must satisfy a few conditions called group axioms, namely closure, associativity, identity and invertibility. While these are familiar from. These are sometimes called wallpaper groups A wallpaper group is a mathematical classification of a two-dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and decorative art. There are 17 possible distinct groups, as they represent the seventeen possible symmetry types that can be used for wallpaper Wallpaper is a kind of material used to cover and decorate the interior walls of homes, offices, and other buildings; it is one aspect of interior decoration. It is usually sold in rolls and are put onto a wall using wallpaper paste. Wallpapers can come either plain , or with patterned graphics.

Like 41, the number 17 is a prime that yields primes in the polynomial In mathematics, a polynomial is an expression of finite length constructed from variables and constants, using only the operations of addition, subtraction, multiplication, and non-negative, whole-number exponents. For example, x2 − 4x + 7 is a polynomial, but x2 − 4/x + 7x3/2 is not, because its second term involves division by the variable x n² + n + p, for all positive n < p − 1.

In the Irregularity of distributions problem, consider a sequence of real numbers In mathematics, the real numbers include both rational numbers, such as 42 and −23/129, and irrational numbers, such as pi and the square root of two; or, a real number can be given by an infinite decimal representation, such as 2.4871773339..., where the digits continue in some way; or, the real numbers may be thought of as points on an between 0 and 1 1 is a number, numeral, and the name of the glyph representing that number. It represents a single entity, the unit of counting or measurement. For example, a line segment of "unit length" is a line segment of length 1 such that the first two lie in different halves of this interval In mathematics, a interval is a set of real numbers with the property that any number that lies between two numbers in the set is also included in the set. For example, the set of all numbers x satisfying is an interval which contains 0 and 1, as well as all numbers between them. Other examples of intervals are the set of all real numbers , the, the first three in different thirds, and so forth. The maximum possible length of such a sequence is 17 (Berlekamp & Graham, 1970, example 63).

Either 16 or 18 unit squares can be formed into rectangles with perimeter equal to the area; and there are no other natural numbers In mathematics, there are two conventions for the set of natural numbers: it is either the set of positive integers {1, 2, 3, ...} according to the traditional definition; or the set of non-negative integers {0, 1, 2, ...} according to a definition first appearing in the nineteenth century with this property. The Platonists Platonism is the philosophy of Plato or the name of other philosophical systems considered closely derived from it. In a narrower sense the term might indicate the doctrine of Platonic realism. The central concept of Platonism is the Theory of Forms: the transcendent, perfect archetypes, of which objects in the everyday world are imperfect copies regarded this as a sign of their peculiar propriety; and Plutarch Plutarch, born Plutarchos then, on his becoming a Roman citizen, Lucius Mestrius Plutarchus (Μέστριος Πλούταρχος), c. 46 – 120 AD, was a Greek historian, biographer, essayist, and Middle Platonist known primarily for his Parallel Lives and Moralia. He was born to a prominent family in Chaeronea, Boeotia, a town about twenty notes it when writing that the Pythagoreans Pythagoreanism is a term used for the esoteric and metaphysical beliefs held by Pythagoras and his followers, the Pythagoreans, who were considerably influenced by mathematics. Pythagoreanism greatly influenced Platonism. Later revivals of Pythagorean doctrines led to what is now called Neopythagoreanism "utterly abominate" 17, which "bars them off from each other and disjoins them".^[2]

17 is the tenth Perrin number, preceded in the sequence by 7, 10, 12.

In base 9, the smallest prime with a composite sum of digits is 17.

17 is known as the Feller number, after the famous mathematician William Feller William Feller born Vilibald Srećko Feller (July 7, 1906 – January 14, 1970), was a Croatian-American mathematician specializing in probability theory who taught at Princeton University Princeton University is a private research university located in Princeton, New Jersey, United States. The school is one of the eight universities of the Ivy League, and is one of the nine Colonial Colleges founded before the American Revolution for many years. Feller would say, when discussing an unsolved mathematical problem, that if it could be proved for the case n = 17 then it could be proved for all positive integers n. He would also say in lectures, "Let's try this for an arbitrary value of n, say n = 17."

Similar to Feller, Prof. Vadim Khayms of Stanford University is also known to use 17 as an arbitrary value during lectures. His Computational Mathematics for Engineers course includes 17 lectures.

17 is the least random number^[3], according to the Hackers Today, mainstream usage mostly refers to computer criminals, due to the mass media usage of the word since the 1980s. This includes script kiddies, people breaking into computers using programs written by others, with very little knowledge about the way they work. This usage has become so predominant that a large segment of the general public is' Jargon File The Jargon File is a glossary of hacker slang. The original Jargon File was a collection of hacker slang from technical cultures such as the MIT AI Lab, the Stanford AI Lab , and others of the old ARPANET AI/LISP/PDP-10 communities, including Bolt, Beranek and Newman, Carnegie Mellon University, and Worcester Polytechnic Institute. There is a proven theorem that 17 is the value most likely to be picked as a "random Randomness is a concept of non-order or non-coherence in a sequence of symbols or steps, such that there is no intelligible pattern or combination. Randomness has somewhat disparate meanings as used in several different fields. It also has common meanings which may have loose connections with some of those more definite meanings. The Oxford" number when such is needed in journalism which is derived from the Feller number.^[4]

It is a repunit prime in hexadecimal In mathematics and computer science, hexadecimal is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a through f) to represent values ten to fifteen. For example, the hexadecimal number 2AF3 is equal, in (11).

It is believed that the minimum possible number of givens for a sudoku Sudoku (数独, sūdoku?, listen ) (English pronunciation: /suːˈdoʊkuː/ soo-DOH-koo) is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions& puzzle with a unique solution is 17, but this has yet to be proven.

There are 17 orthogonal curvilinear coordinate systems In mathematics and its applications, a coordinate system is a system for assigning an n-tuple of numbers, scalars or variables to each point in an n-dimensional space. This concept is part of the theory of manifolds. "Scalars" in many cases means real numbers, but, depending on context, can mean complex numbers or elements of some other (to within a conformal symmetry) in which the 3-variable Laplace equation can be solved using the separation of variables In mathematics, separation of variables is any of several methods for solving ordinary and partial differential equations, in which algebra allows one to rewrite an equation so that each of two variables occurs on a different side of the equation technique.

17 is the first number that can be written as the sum of a positive cube and a positive square in two different ways; that is, the smallest n such that x³ + y² = n has two different solutions for x and y positive integers. The next such number is 65.

In science

• The atomic number In chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an atom of neutral charge, the atomic number is also equal to the number of of chlorine Chlorine (pronounced /ˈklɔəriːn/ KLOR-een, from the Greek word 'χλωρóς' , is the chemical element with atomic number 17 and symbol Cl. It is a halogen, found in the periodic table in group 17 (formerly VII, VIIa, or VIIb). As the chloride ion, which is part of common salt and other compounds, it is abundant in nature and necessary to.
• The Brodmann area A Brodmann area is a region of the cortex defined based on its cytoarchitecture, or organization of cells defining the primary visual processing area The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The primary visual cortex is Brodmann area 17, commonly called V1 . Human V1 is located on the medial side of the occipital lobe within the calcarine sulcus; the full extent of V1 often continues onto the of mammallian Mammals are a class of vertebrate, air-breathing animals whose females are characterized by the possession of mammary glands while both males and females are characterized by hair and/or fur, three middle ear bones used in hearing, and a neocortex region in the brain. Some mammals have sweat glands, but most do not brains.
• Group 17 In chemistry, a group is a vertical column in the periodic table of the chemical elements. There are 18 groups in the standard periodic table of the periodic table The periodic table of the chemical elements is a tabular display of the chemical elements. Although precursors to this table exist, its invention is generally credited to Russian chemist Dmitri Mendeleev in 1869, who intended the table to illustrate recurring ("periodic") trends in the properties of the elements. The layout of the table are the Halogens The halogens or halogen elements are a series of nonmetal elements from Group 17 IUPAC Style of the periodic table, comprising fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). The artificially created element 117, provisionally referred to by the systematic name ununseptium, may also be a halogen.

Age 17

• In the United Kingdom The United Kingdom of Great Britain and Northern Ireland[note 7] is a sovereign state located off the northwestern coast of continental Europe. It is an island country, spanning an archipelago including Great Britain, the northeastern part of the island of Ireland, and many small islands. Northern Ireland is the only part of the UK with a land, the minimum driving age for a car or van.
• In the United States ^ b. English is the de facto language of American government and the sole language spoken at home by 80% of Americans age five and older. Spanish is the second most commonly spoken language, the age at which one may purchase M-rated video games according to ESRB ratings.
• Also in some of the states in the United States, seventeen is the age of consent.
• In most states of the United States and the United Kingdom, the age at which you may donate blood.
• In many countries and regions, the age at which one may obtain a driver's license.
• In the United States, the age at which one may rent or purchase R rated movies by himself/herself according to the MPAA film rating system.
• In the United States, the age at which one can enlist in the armed forces with Parental Permission.
• At this age one can apply for a Private Pilot Licence (however the applicant can start training at 16).

In culture

Music

• 17 is a number of obsession used by horrorcore rappers, Insane Clown Posse. The song "17 Dead" off their first EP Beverly Kills 50187 uses the number frequently. Many of their songs reference the number 17 and most of their LP's contain 17 tracks. 17 is also used for the 17th Dimension in ICP's board game, the Quest for Shangri-La, as an infinite dimension of evil.
• "(She's) Sexy + 17" was a 1983 Top 10 hit for Stray Cats from the album Rant N' Rave with the Stray Cats.
• "At Seventeen" was a 1975 hit by Janis Ian.
• "17", a song recorded by Rick James, in the album Reflections.
• The ratio 18/17 was a popular approximation for the equal tempered semitone during the Renaissance.
• "Seventeen" was the original name of The Beatles song "I Saw Her Standing There" which begins with the lyric "Well, she was just seventeen if you know what I mean."
• "17", a B-Side by Shiina Ringo on the "Tsumi to Batsu" single.
• The title of the song "17" by the Smashing Pumpkins. It is 17 seconds long, with no vocals, but comes with a poem which read at a standard speed will finish at the end of the song. This song is also a musical allusion to another Smashing Pumpkins work called "Blissed and Gone" which references 17 in the lines 'Sweet 17, sour 29' and 'I had no cause, just 17 days of rain'.
• "Seventeen", a song recorded by Winger.
• "17", a song by yourcodenameis:milo.
• "Seventeen", a song by Ladytron.
• "Seventeen" by Jimmy Eat World.
• "Seventeen Ain't So Sweet" a song by The Red Jumpsuit Apparatus.
• "17" a song by Kings of Leon.
• "Edge of Seventeen", a song from the 1981 album Bella Donna by Stevie Nicks.
• "17" by Milburn.
• 17 Hippies, German band.
• "Seventeen Forever" a song by Metro Station (band).
• Seventeen Days, 3rd studio album from American rock band 3 Doors Down.
• "Dancing Queen" by Abba features the line 'You are the Dancing Queen, young and sweet, only 17'.
• "All Summer Long" by Kid Rock features the line 'She was 17 but she was far from in between'.
• "Strawberry Wine" by Deana Carter features the line 'Strawberry Wine, 17, the hot July moon saw everything'.
• "God Love Her" by Toby Keith features the line 'The way a girl gets when she turns 17, kinda crazy'.
• "Sheer Heart Attack" by Queen features the line 'Well you're just 17 and all you want to do is disappear'.
• "Seventeen" is the sixth song on the album Give Me a Wall by ¡Forward, Russia!.
• "Hello, Seventeen" by 12012.
• "17 Again" is a song by Eurythmics as featured on their 1999 album Peace.
• Seventeen Seconds is the second studio album by The Cure, released in April 1980 by Fiction Records.
• "17 Days" was a song recorded by Prince.
• "Seventeen" is the fifth song on the album Shaka Rock by the Australian rock band Jet.
• "Seventeen" is the 22nd musical number on the Repo! soundtrack.
• "17" is a song by Moldovan singer Dan Bălan

Film

• Number Seventeen (1932), directed by Alfred Hitchcock
• Stalag 17 (1953), directed by Billy Wilder
• Try Seventeen (2002), directed by Jeffrey Porter
• In 2004, Volatile Films released a feature length film titled The Significance of Seventeen starring Cindy Taylor; one theme addressed by the film is the high incidence of the number 17 and its function as 'the most random number' as described by MIT.
• In the film Three Days of the Condor, the title character played by Robert Redford works in section 17 of the CIA.
• In the Halloween film series the number 17 frequently reappears. Primarily with the age of people Michael Myers kills. Judith Myers is killed at 17 in the start of the first film, and Laurie Strode (the main character of the first films) is 17 when Michael Myers starts hunting her.
• 17 Again (2009), directed by Burr Steers

Print

• The title of Seventeen, a magazine.
• The number 17 is a recurring theme in the works of novelist Steven Brust. All of his chaptered novels have either 17 chapters or two books of 17 chapters each. Multiples of 17 frequently appear in his novels set in the fantasy world of Dragaera, where the number is considered holy.
• In The Illuminatus! Trilogy, the symbol for Discordianism includes a pyramid with 17 steps because 17 has "virtually no interesting geometric, arithmetic, or mystical qualities". However, for the Illuminati, 17 is tied with the "23/17 phenomenon".
• In the Harry Potter universe
  • 17 is the coming of age for wizards. It is equivalent to the usual coming of age at 18.
  • 17 is the number of Sickles in one Galleon in the British wizards' currency

Religion

• According to Leon Kass, 17 has some significant meaning (as yet not known exactly) in the book of Genesis.^[5]
• In the Yasna of Zoroastrianism seventeen chapters were written by Zoroaster himself, these are the Gathas.
• The number of the raka'ahs that Muslims perform during Salah on a daily basis.
• The number of surat al-Isra in the Qur'an.

In sports

• The most famous Ford number in the V8 Supercar championship, Driven by Dick Johnson to bring 5 Australian Touring Car Championships to his name. Now driven by son Steven Johnson.
• NASCAR driver Matt Kenseth's car number.
• The retired jersey number of former baseball pitcher Dizzy Dean.
• The number of former Chicago Cubs first baseman Mark Grace.
• The number of retired hockey player Wendel Clark
• The number of ice hockey player Chris Chaney
• The number of ice hockey player Rod Brind'Amour
• The number of ice hockey player Ilya Loltastic
• The number of ice hockey player Petr Sýkora
• The number of ice hockey player Jeff Carter
• The number of ice hockey player Milan Lucic
• The number of ice hockey player Chris Clark
• The number of ice hockey player Ryan Kesler
• The former number of Right Winger Jean-Pierre Dumont when he played for the Buffalo Sabres
• The number of Hall of Fame basketball player John Havlicek
• The number of New York Giants' Wide Receiver Plaxico Burress
• The number of New York Jets Wide Receiver Braylon Edwards
• The number of Toronto Blue Jays third baseman Kelly Gruber, and current first baseman Lyle Overbay
• The number that footballer Marc-Vivien Foé wore for the French clubs Lens and Lyon, retired by both clubs after his death from heart failure during a semifinal match in the 2003 FIFA Confederations Cup. Foé also wore the 17 shirt for the Cameroon national team at the time of his death.
• Real Madrid striker Ruud van Nistelrooy's shirt number
• The number that Cristiano Ronaldo wore on the Portuguese National Team, before switching to number 7 after the retirement of Luís Figo.
• The number that Giovani dos Santos wore on the Mexico National Team for the 2010 FIFA World Cup- South Africa.
• The number of San Diego Chargers Quarterback Philip Rivers.
• The number of Cleveland Browns Quarterback Jake Delhomme.
• The number of Washington Redskins Quarterback Jason Campbell.
• The number of Colorado Rockies first baseman Todd Helton.
• The number of Arizona Diamondbacks pitcher Brandon Webb.
• The number of NBA Championships won by the Boston Celtics.
• The number of Tuncay Şanlı in the Turkish national team while scoring against Greece in the 1-4 match in Athens.
• The number of Ken Griffey Jr. while playing for Chicago White Sox.
• The number of Ateneo Blue Eagles and GMA Network television host Chris Tiu
• The number of former Collingwood Football Club Captain Scott Burns when he played from 1995 until 2008.

In other fields

Seventeen is:

• Described at MIT as 'the least random number', according to hackers' lore. This is supposedly because in a study where respondents were asked to choose a random number from 1 to 20, 17 was the most common choice.
  • This study has been repeated a number of times, for example ^[6] and.^[7]
• The number of laws of the game in Association Football
• The number of guns in a 17-gun salute to U.S. Army, Air Force and Marine Corps Generals, and Navy and Coast Guard Admirals.
• The number of flames emanating from the grenade cap-badge of the Grenadier Guards.
• During the Second World War, the four-engined heavy bomber as flown by the USAAF and other Allies and known as "The Flying Fortress", was also known as the B-17.
• A mild swear word in Swedish. The origin is debated, and is commonly used as "sjutton också!" ("seventeen, too!"). It can roughly be translated to "Darn!". It is of course also used for the number 17.
• The maximum number of strokes of a Chinese radical.
• The number of syllables in a haiku (5+7+5).
• In the Nordic countries the seventeenth day of the year is considered the heart and/or the back of winter.
• "Highway 17" or "Route 17": See List of highways numbered 17 and List of public transport routes numbered 17.
• Seventeen, also known as Lock Seventeen, an unincorporated place in Clay Township, Tuscarawas County, Ohio.
• Seventeen was the former name of a yacht prior to being commissioned in the US Navy as the USS Carnelian (PY-19).
• In Italian culture, the number 17 is considered unlucky. When viewed as the Roman numeral, XVII, it is then changed anagramatically to VIXI, which in the Latin language it translates to "I have lived", the perfect tense implying "My life is over." (c.f. "Vixerunt", Cicero's famous announcement of an execution.) Renault sold its "R17" model in Italy as "R177." See Cesana Pariol in the sport section about the name of curve 17.
• Android 17, a fictional character in the metaseries Dragon Ball.
• Some species of cicadas have a life cycle of 17 years (i.e. they are buried in the ground for 17 years between every mating season).
• The number of special significance to Yellow Pig's Day and Hampshire College Summer Studies in Mathematics.
• The number to call Police in France.
• The number that symbolizes the soul.
• Force 17, a special operations unit of the Palestinian Fatah movement.
• The number of the French department Charente-Maritime

Historical years

A.D. 17, 17 B.C., 1917, 2017, etc.

References

1. ^ John H. Conway and Richard K. Guy, The Book of Numbers. New York: Copernicus (1996): 11. "Carl Friedrich Gauss (1777–1855) showed that two regular "heptadecagons" (17-sided polygon) could be constructed with ruler and compasses."
2. ^ Babbitt, Frank Cole (1936). Plutarch's Moralia. V. Loeb. http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Moralia/Isis_and_Osiris*/C.html#42
3. ^ "Random numbers"
4. ^ Language Log: Another trip down Random Rd
5. ^ For example, the patriarch Jacob lived 17 years years after his son Joseph went missing and presumed dead, and lived 17 years after their reunion in Egypt, and the lifespans of Abraham aged 175, Isaac aged 180, and Jacob aged 147 are not a coincidence. "(The sum of the factors in all three cases is 17; of what possible significance this is, I have no idea.)" Leon Kass, The beginning of wisdom: reading Genesis,(Simon and Schuster, 2003), ISBN 9780743242998, p. 413 n. 10 (citing Genesis 47:28), quote from p. 629 n. 18, found at Google Books. Retrieved June 17, 2009.
6. ^ http://scienceblogs.com/cognitivedaily/2007/02/is_17_the_most_random_number.php
7. ^ http://blogs.discovermagazine.com/cosmicvariance/2007/01/30/the-power-of-17/

• Berlekamp, E. R.; Graham, R. L. (1970). "Irregularities in the distributions of finite sequences". Journal of Number Theory 2: 152–161. doi:10.1016/0022-314X(70)90015-6. MR 0269605.

External links

• Properties of 17
• Mathematical properties of 17 at yellowpigs.net
• 17

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